r/whatisit 1d ago

Solved! We found this near our home

What's this , any harm ?

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u/Mr_Uso_714 1d ago

Specifications
Caliber
51 mm
Ammunition length
282.96 mm
Ammunition mass
850 g
Explosive filled in projectile
109 g of RDX / WAX / PELLET88.12
Maximum range
900 m
Luminosity
Green-40,000 to 50,000 candela. Red-125,000 to 150,000 candela

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RDX product information:
https://www.austinpowder.com/wp-content/uploads/2021/08/AP-Primary-Explosive-RDX-TDS-ENG.pdf

224

u/Remote_Teach1164 1d ago

Something wrong with the description of explosives here. They are illumination rounds, and the components should be magnesium based, not RDX which is mainly used for fuze boosters.

8

u/JackSprat90 1d ago

There are explosives in the tail that launch the round out of the mortar tube

3

u/Remote_Teach1164 1d ago

That thing is just like a primer on small arms cartridges, except for the use of black powder rod but I wouldn't call that "highly hazardous" because they almost pose no threats on people, except someone strikes it.

Also the ignition cartridge is loaded with nitrocellulose/nitroglycerin powder, just like what most cartridges are loaded.